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Diffstat (limited to 'node_modules/ansi-align/index.js')
-rw-r--r-- | node_modules/ansi-align/index.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/ansi-align/index.js b/node_modules/ansi-align/index.js new file mode 100644 index 0000000..67fa826 --- /dev/null +++ b/node_modules/ansi-align/index.js @@ -0,0 +1,61 @@ +'use strict' + +const stringWidth = require('string-width') + +function ansiAlign (text, opts) { + if (!text) return text + + opts = opts || {} + const align = opts.align || 'center' + + // short-circuit `align: 'left'` as no-op + if (align === 'left') return text + + const split = opts.split || '\n' + const pad = opts.pad || ' ' + const widthDiffFn = align !== 'right' ? halfDiff : fullDiff + + let returnString = false + if (!Array.isArray(text)) { + returnString = true + text = String(text).split(split) + } + + let width + let maxWidth = 0 + text = text.map(function (str) { + str = String(str) + width = stringWidth(str) + maxWidth = Math.max(width, maxWidth) + return { + str, + width + } + }).map(function (obj) { + return new Array(widthDiffFn(maxWidth, obj.width) + 1).join(pad) + obj.str + }) + + return returnString ? text.join(split) : text +} + +ansiAlign.left = function left (text) { + return ansiAlign(text, { align: 'left' }) +} + +ansiAlign.center = function center (text) { + return ansiAlign(text, { align: 'center' }) +} + +ansiAlign.right = function right (text) { + return ansiAlign(text, { align: 'right' }) +} + +module.exports = ansiAlign + +function halfDiff (maxWidth, curWidth) { + return Math.floor((maxWidth - curWidth) / 2) +} + +function fullDiff (maxWidth, curWidth) { + return maxWidth - curWidth +} |